// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/builtins/builtins-promise.h"

#include "src/builtins/builtins-utils-inl.h"
#include "src/builtins/builtins.h"
#include "src/counters.h"
#include "src/heap/heap-inl.h" // For ToBoolean. TODO(jkummerow): Drop.
#include "src/objects-inl.h"

namespace v8 {
namespace internal {

    BUILTIN(IsPromise)
    {
        SealHandleScope scope(isolate);

        Handle<Object> object = args.atOrUndefined(isolate, 1);
        return isolate->heap()->ToBoolean(object->IsJSPromise());
    }

} // namespace internal
} // namespace v8
